In the course of these two days, above network shares will be moved to new servers. During the move action, a share will not be available.

+

+

connecting to shares If you encounter any problems connecting to a networks share using Windows, always connect using the "share-name minus srv": \\sharenaam-srv.science.ru.nl\sharenaam. See also [[Diskruimte#Naming]].

In the course of these two days, above network shares will be moved to new servers. During the move action, a share will not be available.

connecting to shares If you encounter any problems connecting to a networks share using Windows, always connect using the "share-name minus srv": \\sharenaam-srv.science.ru.nl\sharenaam. See also Diskruimte#Naming.

BASS Java 7 problem

The ISC let us know that after the installation of patches installed in BASS during the weekend of December 1, the possibility to use a recent version of Java (version 7) has erroneously disappeared. The ISC is looking for a solution, but is not clear yet when this will be resolved.

Interruption of network in Huygens wing 1

Tuesday night December 17 19:00-24:00 hours, maintenance work will be done affecting the data network in Huygens wing 1. The wired and wireless network will suffer service interruptions a few times during that period. The main inconvenience will be on the ground floor.

Postponed replacement of home-server "bundle"

The replacement of the old home server "bundle" has been postponed and will now guaranteed take place on Monday morning December 23. Because the data have been synchronized with the new server, there will not be much downtime. The new server should be very dependable: hardware RAID-6, double processors and power supplies and a 5-year support contract from the supplier. The performance has improved, e.g. by using hardware RAID with a 1 GB write cache with battery backup.

Scan to email sometimes doesn't work for Konica Minolta C364e

Begin : 2013???? ??:??
End : unknown (temporary after switching off and on a KM MFP C364e)
Affected : Users of a KM MFP C364e as a scanner

Users report to us that the scanning to e-mail sometimes doesn't work, with an error like "Server not found. Scan deleted". The problem has been reported to KM. As far as we know, the problem occurs only seldom. It can temporarily be resolved by switching the machine off and on again.

Report a problem

Use this form to report less urgent problems. For urgent problems, call 20000 (helpdesk).

Recently Resolved Service Interruptions and Maintainance

To be quickly informed about service interruptions one can subscribe to the
CPK mailinglist.

Service interruption Konica Minolta MFP's outside of Huygens building

Begin : 20131209 12:48
End : 20131209 13:40 after reset of a KM MFP
Affected : Users of the KM MFP's outside of the Huygens building

C&CZ changed the DHCP-configuration of the KM MFP's, because KM had told us all KM's had an identical configuration after the upgrade of the night of December 4. Soon thereafter the KM's outside of the Huygens building showed problems. After changing the DHCP-configuration back to the previous version and restarting the MFP's, the problem was resolved. The firmware upgrade of these machines still has to take place.

Konica Minolta MFP's firmware upgrade

Wednesday night, the firmware of the Konica Minolta multifunctionals will be upgraded. This should resolve existing problems, like the not waking up from sleep mode. Please report all remaining problems, for MFP-hardware and paper to KM via phone: 55955 option 4.

Power dip December 3

Tuesday morning around half past nine, there was a short power dip for RU/UMCN, probably due to a switch error at Liander. This power dip, that is not listed on the power interruption website, made all systems restart that were not on UPS power. Because only the network switches in Huygens wing 1 and 7 are on UPS power, a lot of users lost their connection to the network, including wireless and IP-telephony, for about 20 minutes. Apparatus that restarted faster than the network, might have needed an extra restart to restore the connection to the network.

Again IMAP mail server problem

Just like 3 days ago, the IMAP server got overloaded after noon. It took a reboot to bring the service back in operation. We suspect that our making of a backup-snapshot triggers this and now have disabled the snapshot during working hours.

Yesterday afternoon around 14:30 the ISC conducted a seemingly innocent maintenance on the LDAP-server, but immediately after that auth-requests from Radius were no longer serviced. This made it impossible for wireless users to authenticate with their u/s/e number. Users in the realm @science.ru.nl were not affected by this.

Power dip October 22, ca. 11:00

Tuesday morning around 11 o'clock, there was a short power dip for RU/UMCN. This power dip, that is not listed on the power interruption website, made all systems restart that were not on emergency power. Because only the network switches in Huygens wing 1 and 7 are on emergency power, a lot of users lost their connection to the network, including wireless and IP-telephony, for about 5 minutes. Apparatus that restarted faster than the network, might have needed an extra restart to restore the connection to the network. A department reported that a departmental printer did not survive the power dip.

Again mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Sound on Linux dual-boot PC's disabled

The availability of sound in Windows appeared to be depending on the state in which Linux had left it. Therefore the sound in Linux on dual boot PC's has been disabled, in order to have it available on Windows.

BASS RU problem

The central BASS RU environment has been updated last weekend.
Part of this upgrade was a change of the web address of the second logon screen, as announced on our BASS page.
This morning it became clear that access to the second logon screen via the Port Forwarder didn't work anymore.
Therefore the UCI rolled back the change of the second logon screen. This means that AFTER LOGGING ON TO THE PROXY at https://admin.ru.nl/
BASS is available again via https://bassruap01.uci.ru.nl:8010/OA_HTML/AppsLocalLogin.jsp

This problem will be finally resolved when the Port Forwarder will be stopped on October 1, 2013.

Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

And again mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

And yet again mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Yet again mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Again mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

DNS nameserver problem

Begin : 20130617 04:30
End : 20130617 08:45
Affected : DNS clients

The DNS server on ns1.science.ru.nl didn't start after the reboot, due to a syntax error in one of the zone files. When this had been coreected, it started without problems.

Maintenance Wireless@RU

On Thursday June 6th from 10:00 pm the wireless networks ru-wlan and eduroam will be unavailable for at least 2 hours. All existing connections will be cut off. The wireless network Science however will not be effected and will be kept available.

OpenID server problem

During the renewal of the OpenID server a configuration error was made. When users reported problems logging in, we started searching for the origin of problem. When it was found, it could easily be corrected and the server could be restarted with the correct configuration.

Homeserver bundle failed reboot

The fileserver failed to reboot during the regular Monday morning shutdown schedule. It was possible to gain access to the system console only after having removed all power from the chassis. Snapshots were removed using the rescue reboot but rebooting the machine resulted in a faulty filesystem. We were able to boot the system after all filesystems had been checked offline. These actions resulted in a unusual long downtime.

Disk server stack offline

Disk server pile offline

Begin : 20130408 06:30
End : 20130408 08:15
Affected : Users of disk volumes on file server Pile (userhomes).
Problem : Pile: Did not shutdown properly during weekly reboot due to a kernel panic which was
Solution : Executed power-cycle of the system

Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

Network problems due to installation of Matlab R2013a

Yesterday Matlab R2013a has been installed. Today at 13:00 hours many servers started to automatically copy this 5.4 GB to their local disc. Some parts of the network were overloaded by all these copying, which made accessing the network slow for many users. The distribution of this software will now be scheduled to happen over a longer period, primarily outside of working hours.

More IP-numbers for ru-wlan and Science (wireless)

Monday, March 4th 2013 at 18:00 hours, the number of IP numbers that is available in the FNWI buildings for ru-wlan and Science will be doubled. Because ru-wlan moves to a new range, users of ru-wlan will lose connectivity for at most 15 minutes.
There was already a plan to replace ru-wlan and Science within the FNWI buildings by the RU-wide Eduroam and ru-wlan, but the wireless network usage has grown so fast that we can not wait for this plan to be realized. Last week some wireless users at times could not even get an IP address, although the lease time had been brought down to 30 minutes. Therefore this temporary measure became necessary on such short notice.

Mail problems after supplying password to phishers

The last few days three Science users have supplied their Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam. This time they even used a fake copy of the horde Science webmail website. The big differences with the real horde Science webmail website are:

the URL is not within science.ru.nl

the connection is not a secure https connection, there is no lock

the username and password do not arrive at C&CZ servers, but in the hands of Internet criminals.

PLEASE: do not naively click on a link in an e-mail!

New Radius server for ru-wlan and eduroam (wireless)

On Monday, January 28th 2013 at 8:00 am, one of the servers that is being used by the wireless network of the RU, will be replaced. This replacement will affect you as a user of the wireless networks ru-wlan and eduroam:
There will appear a new certificate when connecting. You can just accept this, after which the connection should work. If this appears not to be the case, then it’s best that you remove your old Eduroam- respectively your old RU-WLAN settings first to activate the new connection .

Specifically for iPhone / iPad users:
We recommend that you first remove your old Eduroam- respectively your old RU-WLAN profile before activating the new connection without a profile. If that unexpectedly fails, please review the information on www.ru.nl/wireless for iPhone/iPads.
If necessary, you can also download a new profile from that site.

Homeserver bundle crashed

LDAP server vernieuwd

Date : 20121214
Affected : Users with a Fedora based desktop PC

Older Fedora desktop PC's may experience startup problems after an upgrade of one of our LDAP servers. A fix is available and has been applied. If you still encounter this problem, please contact C&CZ.

Mail problems after supplying password to phishers

Horde webmail again appeared to be misused for sending spam. This could happen because a naive user gave the Science password to phishers/spammers. After first stopping horde, early Friday morning we disabled the account of the naive user and restarted horde. Saturday morning it appeared that this short spam-outbreak had caused administrators of hotmail.com to add our mail server to their blacklist. Therefore we switched the IP-number of this mail server Saturday morning.

Services unavailable due to power and network outage

During the night of wednesday on thursday a power outage resulted in a network outage in the basement computing facilities.
The power was restored to the network equipment using a bypass thus circumventing the UPS at about 09:15.
Further checks implied that most servers had not become powerless so that most services became automatically available again.
Network drivers on "bundle" had to be restarted in order to get access to home directories for a large number of users.
Furthermore, several websites had to be restarted which made it possible for PC's to boot properly.
During the day, an unrelated issue with the RAID storage of "plus" has been fixed as well granting access to the following network shares:
sofie, ams*, molchem, mb*, encapson, milkun4, snn, neuropi, digicd. carta, ...
Since wireless devices were unable to acquire IP addresses, i.e. gain access to the network, a split-brain situation was diagnosed within the DHCP service which was resolved around 13:00.

Announced downtime: home server "pile" down for reboot

Next Friday morning, the home server "pile" will be rebooted. There are problems with the snapshots, which could make a reboot take more time. Therefore we schedule the reboot for early next Friday.

Peage top-up unit near Huygens restaurant in maintenance

In order to test new software, the Peage top-up unit near the Huygens restaurant was switched to maintenance mode.
This unit is not used often yet, therefore this wil not have caused problems. Students that wanted to top-up their Peage account, could do that only elsewhere on campus. See the http://www.ru.nl/peage Peage website], locations are the halls of the Erasmus, Spinoza and Library buildings.

Eduroam incoming doesn't work for iPhone/iPad/iPod

The UCI network management reports that at this moment the incoming version of Eduroam doesn't work for iPhone/iPad/iPod. A solution is being worked upon. Eduroam incoming means that one uses the wireless network of a remote institute, with authentication (login/password) being checked by RU or Science.

Horde webmail server down because of spam

Yesterday evening, horde webmail appeared to be misused for sending spam. This could happen because a naive user gave the Science password to spammers. First we stopped horde. This morning we disabled the account of the naive user and restarted horde.

Next Tuesday morning, the home server "pile" will be replaced by a new, more powerful server. Because the data have been synchronized with the new server, there will not be much downtime. The new server should be very dependable: hardware RAID-6, double processors and power supplies and a 5-year support contract from the supplier. The performance has improved, e.g. by using hardware RAID with a 1 GB write cache with battery backup.

Partly announced downtime for mailman + horde webmail server

This morning, horde webmail appeared to be misused for sending spam. This could happen because naive users gave their Science password to spammers. After we found out who the users were and had them change their password, we decide to also replace a defective cpu fan. Therefore also Mailman mailing lists will be down from 13:00 to 14:00 hours.

SMTP server blacklisted by MS Live Hotmail

This morning, users reported that mail from smtp.science.ru.nl to hotmail users was being bounced by hotmail. We have tried to let the hotmail administrators change this fast, but when this took too long, we changed the IP-number of our smtp-server.

Planned service interruption: file server with problems

A hardware failure of a boot disk of the fileserver stack was reported Friday morning June 22. We decided to repair this after working hours. Thus at approximately 17:00 the defective boot disk was removed from the machine and replaced by a spare one. Enabling the disk, making it bootable, restoring file systems and rebooting the machine (after removing all snapshots) took a lot of time. When this was resolved Friday evening, the NFS/SMB fileservice was not active on the mounted filesystems. It took a reboot Sunday evening to resolve all problems.

Tracelab server poly defective

Begin : 20120621 14:12
End : 20120621 17:15
Affected : Tracelab for users. For administrators also Prism&Deploy and the WDS-service

A hardware failure of the server poly was reported at 2012-06-21 14:12. After a restart of the machine, it stopped working again.
No more recoveries were attempted and an identical spare machine was outfitted with the disks from the defective server. Disks had to be synchronized before making the machine available again.

Planned Service: website-databases and maybe Linux clients

20 Apr 2012 17:00 - 17:15

A defective hard disc has been replaced in a server, but the server needs to be rebooted to ensure that this is reboot proof. The MySQL database of roughly 70 websites will therefore be down for a short time. Since this server also provides the Kerberos authentication for Linux clients, Linux clients might encounter service interruptions during a short period.

Windows server "plenty" with xpsoftware unavailable

Thursday July 7, around 13.00 hours the server "plenty" could not be reached. Because this server serves the "xpsoftware" share for the Managed Windows PC's, all these PC's had a problem. After the server was restarted and the disks had been checked, it was available again at 14:26.

Downtime Science servers: Sunday July 3, 09:00 - 12:00 hours

In order to improve the cooling of a server room, we plan to move three racks of Science servers a few meters on Sunday morning, July 3. We will have to switch off a lot of servers temporarily. Therefore several services will be unavailable some time starting July 3, 09:00 hours. We expect the downtime will last until 10:00 hours for servers with a lot of different users. The cn compute cluster will probably be fully operational again at 12:00 hours.

Network outage June 22, 10:55-11:30

This morning, in the network hub for Huygens South a UPS (battery power supply) went down, which made a set of network switches loose power. Because of this, users in Huygens wing 1 and spin-off companies lost their connection to the network. After bypassing the UPS, everything was up and running again at 11:30. We are still searching for the exact origin of this outage.

New SSH keys for new login servers

The LInux LOgin server lilo has been replaced. The name now points to the new machine lilo2, because that one is faster than the other login server lilo1. Therefore it is quite normal to accept once the new SSH-key.

Planned Service: Limited computer services

12 Feb 2011 7:00 - 11:00

A backup cooling system will be installed in our main computer room. Therefore the air conditioning system must be switched off, which means that most of the computer facilities in this room must be shut down. This includes the cluster nodes cn00 through cn53 and many of the web- and file- (network share) servers. It is advised to expect a very limited service level. We will try to keep all home directories and the mail system available. For detailed information about the impact please contact C&CZ.

Printer lp5

24 Jan 2011 - 11 Mar 2011

Printer lp5 has been moved to HG00.089. You can't use this printer at the moment, there's a problem with the power supply unit.

Fixed phone problem

7 Mrt 2011

You can't reach certain fixed phones at the university right now, mobile phones and Skype do work ok though.

Mailserver blacklisted

4 Feb 2011 9:00 - 12:00

One of our mail servers has been sending loads of spam after a successful phishing attack. Since then, our server has been blacklisted on several domains. Currently this affects the delivery of email to @hotmail and @live addresses.